Chair



I Dec. 1, 1931. A. scHAuss CHAIR Filed July 9, 1930 Patentecl Dec. 1, 1931 sArEs mram] OFFICE;

JOHN a. soHAUss, OF NonwA K, orno, ASSIGNORTO HE GOMMERCE *GUARDIAN- TRUST e SAVINGS BANK, GF rornno, emo, A CORPORATION or OHIO, TRUSTEE CI-IAIR I Application fiea'u 9, 1930, Serial No. mae s, .and i n Canada :January s, ieo. j

This invention relates to furniture.

This invention has utility when incorporatedin adjustable position chairs.

Referring to the drawings:

Fig. 1 is a side elevation of a chair frame embodying the invention herein;

Fig. 2 is a view on the line II-II, Fig. 1;

Fig. 3 is a view on the line III-III, Fig. 2; and

Fig. 4 is a View on the line IV-IV, Fig. 1.

Legs 1, 2, carry side frame members 3 and forward side connecting brace member 4 and rear side connecting brace 5. The side members 3 provide upper platform 6. Carried on this upper face or platform 6 by each side member 3 are blocks 7 each provided with a straight line series of upwardly open notches 8 transversely in aligned pairs. The rear brace member 5 is provided with forward beveled edge 9.

The seat unit. has side members 10 disas well as back 12. The side members are reinforced by rocker hearing strips 13 attached thereto on the inner sides thereof and which coact directly on the platform 6 provided by the base frame 3. Trunnions 14 extend inwardly therefrom in a pair of similar arc series, the central trunnions coacting with the central notches when the seat is in upright position.

As relative rocking between the first and second unit occurs these trunnions enter into or recede from the respective notches 8 in providing a guide for the rocker hearing maintaining the units in aligned position. The seat unit is further provided with bars 15 one eXtending along each side of the frame just inside of the blocks 7 A transverse reinforcing member 16 is also provided extending across the seat unit at the rear thereof and augmented by a reinforcing strip 17 mounted thereon. i

Additional reinforcing strips 18, 19, 20, are provided to insure ample strength to the seat unit. Forwardly of this unit cross bars 21, 22, 23, insure a rigid construction throughout. The reinforcing strip 17 is provided with opening 24 therethrough in which pin the 'counterweight 34.

25 is driven as'an abntment orstop for fall board 26 ashanging for free swinging from pins 27eXtending intoside members 13. This e pin 25 determines the'fall board coactingrei:

lationship with bevele'd edge or ledge 9 of the base unit for the pin 25 may be driven in either direction in the opening 24 and frictionally held as an adjustment for determining this coacting relationship betweenthe ed trigger mechanism comprising transverseextending bar 30 .having trunnions 31 eX- tending' therefrom into side frame members 3 permittingfr'ee swinging of the bar 30 therefrom. This bar is provided with upwardly extendingstrip ortrigger member 32 having book 33. There is thus provided a lock structure coacting between the two un'its for maintaining a desired position of the seat unit as to thebase unit, but permitting a free rocking movement of the seat unit controlled entirely by 'operation of the seat unit.

The bar 30 has attached thereto counterweight 34 mounted thereon by clip 35 embracing the bar; 30. This counterweight 34 maintains'the hook 33 in a desired position and by sliding the clip upon the bar, this position may beregu'lated for exactness. The clip is comprised of metal of substantial resilien'cy preventing any' undue slipping of A forward thrusting of the seat unit brings *the pin 29 into ,the hook portion of the strip and from there 'rearward movement of the seat unit causes the fall board to be carried beyond the ledge' 9 and onto platform 36 provided by the upper side of the member 5. Continued movement rearward of the seat unit carries the pin beyond the' reach of the hook so that the pin is disengaged therefrom leaving curved edge 37 of the fall board resting on the platform 36 so that the seat unit is free to rock, the fall board simply sliding back and forth nponthe platform;

' Thefh o'ok as soon as disengaged 'from the pin which is just after the fall board has cleared the ldge in its rearward travel re- "ibe turns to upwardly extending position due to the action of the counterweight 34. From the free rocking position, the chair being tilted forwardly beyond normal upright position causes the fall board to travel beyond the limit of the platform 36 Where it then falls to contact the pin 25, which, When the seat unit travels backward, c'auses the edge 37 to then abut the ledge 9, preventing further rearward movement until the chair is again brought forward of its normal position.

The seat unit may receive any desired upholstering. There is herein provided adjustments for both the fall board and the trigger to determine their relative positions for insuring proper coaction and smooth and quiet operation. The lock mechanism may be produced as a unit and installed in a wide range of chair types and sizes and quickly adjusted to properly operate in each individual chair.

What is ,claimed and it is desired to secure by Letters Patent is:

1. A chair comprising a base unit, a Seat unit rockable thereon, a looking device therebetween comprising a fall board carried by one of said units, a ledge carried by the other unit against which said fall board abuts, mechanism operable upon chair movement to cause said fall board to clear the ledge and a stop for said fall board independent of said mechanisn for determining the abi'tting relation between said fall board and ledge.

A chair comprising a base unit, a seat unit rockable thereon, a looking device therebetween comprising a fall board carried by one of said units, a ledge carried by the other unit against which said fall board abuts, and an adjustable stop for said fall'board for determining the abutting relation between said fall board and ledge.

3. A chair co mprising a base unit and a seat unit, a rocker-providing bearing therebetween, a fall board swingably mounted on one unit, a ledge on the other unit, a trigger on the latter unit rockable to engage the fall board to eifect clearway for the fall board past the ledge, and adjustable means on said trigger for determining trigger position as to said board.

4. A chair comprising a base unitand a seat unit, a rocker-providing hearing therebetween, a fall board swingably mounted on one of said units, a ledge on the other unit to be abutted by said fall board, a pin carried by said fall board, a trigger' on the latter unit, and a ho'ok carried by said trigger' for coacting with said pin to efect clearway for fall board travel past the ledge.

5. A chair comprising a back and seat unit, a base unit, a rocker-providing bearing therebetween, a fall board mounted on one unit, a ledge on the other unit to be abutted by said fall board, a trigger on the latter unit rockable to engage the fall board to eifect clear- Way for the fall board past the ledge, and a counter-Weight on said trigger adjustable for determining trigger position as to said fall board.

6. A chair providing a base unit and a seat unit, a rocker hearing therebetween, a fall board swingably mounted on one of said units provided With a pin extending therefrom, a ledge on the other unit to be abutted by said fall board, freely swingable trigger means mounted on' the other unit provided With hook means, said chair unit being movable forward to cause said hook means to engage said pin whereby backward movement of said seat means causes said hook as engaging said pin to Carry said fall board beyond the ledge and further forward movement of said seat unit disengages said hook and pin.

In witness WhereofI afiix my signature.

JOHN A. SCHAUSS. 

